Ok so I tested the battery and made sure it is charged, the connections are tight, I had a problem with the ignition switch so I changed it, checked all the fuses, pulled the main relay and there is nothing visibly wrong with it. When I turn the key there is nothing. the fuel pump doesn't come on, no dash lights, no beeping, nothing. What am I missing?

 

check battery cables. Get in there with a multimeter, and see if you have power going to the fusebox under the hood.